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. Author manuscript; available in PMC: 2009 Jun 29.
Published in final edited form as: Proc West Pharmacol Soc. 2008;51:30–34.

Figure 6.

Figure 6

Inhibition of NDPK-B activity by black tea theaflavins, green tea EGCG, and PAPS. Partially purified NDPK-B was incubated for 4 min with ADP and GTP in the presence of green or black tea polyphenols or PAPS and the resultant ATP measured by luminescence assay. The addition of each compound resulted in a significant reduction in Vmax (p < 0.05) but no change in substrate affinity (Km) which suggests that these compounds act as non-competitive inhibitors. Data are presented as mean ± SEM, n=5.